SKU: EXTCURL

Plate Loaded Leg Extension / Curl Combo

$499.00 $699.00
In stock : Dispatches in 1-2 Business Days
Description

Build your quads and hamstrings using the Sumo Strength Plate-Loaded Leg Extension & Curl Machine. Engineered for durability, comfort, and smooth mechanics, this dual-function machine allows you to isolate the lower body without needing multiple units.

Switch easily between seated leg extensions and leg curls with the simple pin adjustments.
The heavy-duty frame and 360 adjustment points deliver resistance throughout the full range of motion - perfect for hypertrophy, rehab, or strength training.

Whether you're fitting out a commercial facility or building your own home gym, this machine delivers the strength and versatility in a compact piece of kit.

Key Features
  • Dual-function design — targets both quads (leg extensions) and hamstrings (leg curls)
  • 100kg Maximum Weight Plate limit
  • Smooth transition between movements with easy pop-pin adjustment
  • Heavy-duty steel construction with a matte black powder coat finish
  • Commercial-grade padding for comfort and support under load
  • Adjustable thigh pad and back support to suit a range of body types
  • Precision pivot arm for consistent resistance and joint alignment
  • Compatible with Olympic plates (50mm sleeves)
Gear Specs
  • Length: 1100mm
  • Width: 900mm
  • Height: 1000mm
  • Plate Storage Peg: 50mm Diameter
Documents
Warranty

Premium Industry Warranties

Our team work tirelessly to develop great quality products designed for Australian conditions. We offer industry-leading warranties throughout our range and are here to help when problems do occur.

Our warranties vary by product depending upon their intended application and use.
Our warranties do not cover cosmetic damage, general wear and tear, improper use, or colourisation changes due to the natural nature of some materials such as rubber.

Commercial Machine Warranty Periods:

Home Use:

  • Frame: 10 Years
  • Welds: 5 Years
  • Bushings/Bearings: 2 Years
  • Pads/Upholstery: 2 Years
  • Cables: 6 Months
  • Parts & Accessories: 1 Year

Commercial Use:

  • Frame: 5 Years
  • Welds: 5 Years
  • Bushings/Bearings: 2 Years
  • Pads/Upholstery: 1 Years
  • Cables: 6 Months
  • Parts & Accessories: 1 Year
Why Sumo Strength

Australian Owned & Operated

Sumo Strength is proudly 100% Australian owned and operated. Our headquarters in Cranbourne West, Victoria is home to a team deeply experienced in product design, engineering, and strength training. We design equipment built for Australian conditions and real-world performance, with an additional warehouse facility in Brisbane to ensure fast fulfilment nationwide.

Our belief is simple: strength and fitness should be accessible to everyone. Whether you're building a home gym, upgrading a commercial facility, or taking your first step into resistance training, our mission is to deliver equipment that helps you train with confidence.


Price Match Guarantee

We’re committed to offering exceptional value — and we back it with our Price Match Guarantee.

If you find a lower price on an identical, in-stock item offered by an Australian competitor, we’ll match it.
To qualify, the item must:

  • Be the same product, brand, specification, and quality

  • Be in stock and available for immediate purchase

  • Not be part of commercial quantities, liquidation sales, clearances, or bulk-order quotes

Shipping charges can vary significantly by carrier and location, so these are not included in price matching.

To request a price match, simply reach out via our contact form or live chat with screenshots or links. If approved, we’ll provide a seamless checkout process at the matched price.


100-Day Home Trial

We’re confident you’ll love training with Sumo Strength — so we give you 100 days to try our equipment at home or in your commercial gym.

If you’re not satisfied with any item within the trial period, we’ll provide a no-fuss refund of the product value once it’s returned.

How It Works

  1. Place your order

  2. Receive your equipment (keep all original packaging)

  3. Use it for up to 100 days

  4. If you’re not satisfied, contact us and we’ll help arrange the return

  5. Once the item is back in our warehouse and shows only reasonable wear, we’ll issue a full refund of the item value

Return shipping is the responsibility of the customer, and original freight costs (if applicable) are non-refundable.

FAQ

Who pays for shipping on returns?
We fully refund the item value if it doesn’t meet your expectations — but shipping costs, both original and return, remain the customer’s responsibility.

Do I need to keep the packaging?
Yes. All original packaging (including internal supports and foam) must be retained. Returns cannot be accepted without it.


Industry-Grade Warranties

Our equipment is designed and tested for serious training environments. To reflect this, we offer industry-leading warranties across our product categories, with coverage varying based on intended use (home vs commercial).

A full breakdown of warranty periods is available in our Warranty Policy.

Warranty coverage excludes:

  • Cosmetic wear

  • Normal wear and tear

  • Improper use or overloading

  • Colour changes or natural aging of materials such as rubber

If an issue arises, our support team is here to assist quickly and fairly.


Fast Shipping & Click & Collect

We know how important it is to get your gear fast. That’s why we process and dispatch 99% of in-stock orders within 1-2 business days from our Melbourne warehouse.

You can also choose free Click & Collect from our Melbourne warehouse a great option for urgent pickups or avoiding freight charges. Select pick up at checkout and we’ll notify you as soon as your order is ready.

We partner with trusted national freight carriers to deliver heavy equipment safely and efficiently. All deliveries are kerbside in line with freight handling requirements.

Overall rating: 3.8333333 / 5 from 6 reviews.

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Review highlights

Reviews

Great quality

"Have only used it a few times but it's pretty solid. Sumo gear is great. Padding is nice etc. Instructions are terrible, if you are handy you'll be OK. Otherwise pay someone to build it for you. The main pin, the one that slides in is ridiculously hard to get in. Have to hammer it in and once it's 3/4 in I used an M12 coach bolt to get it the rest of the way."

Andy (4/5)

Average instructions

"Average assembly instructions. The pin that is required to be inserted to connect the leg extension to the plate holder is over size and requires an executional amount of force to insert with a synthetic hammer and block. There probably should be a saftey warning for driving the pin so that people aren’t hitting metal on metal and getting a metal splinter in their eye"

Gareth R. (4/5)

Overall good

"Really like the machine but wish it could fit more bumper plates on to load it. Max is two 20s and one 15kg plate. Very user friendly but I’ll need to buy steel plates to load it enough"

Laura C. (3/5)

Poor quality control, slow customer service

"This is the first ever negative review I’ve ever left on anything in my life. I had high hopes for this product but respectfully I had a terrible experience. - Product was shipped with parts unsecured loosely in a box, leading to external damage during shipping - One part was manufactured incorrectly and needed to be replaced because it didn’t fit (thank you to the parts manager who promptly addressed this) - Another part that secures the lever arm was missing from the box (and from the instructions) but was crucial to the functioning of the machine. Asked for a replacement part, and it never came - Got fed up and asked for a refund. Customer service impossible to get hold of. They would never reply for weeks until you send a reminder email. I had to do this multiple times, and I felt bad for doing it, but there was no other way to get a response. - Entire ordeal took over two months for them to facilitate a refund I would have liked to give the benefit of the doubt that this was a once off case, but Google reviews say otherwise."

Alvin L. (2/5)

Great

"Great"

Danny G. (5/5)

Leg Ext/ Curl Combo

"Good value and easy setting up."

Mark T. (5/5)

Q&A